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Annual progress report. [Nonlinear saturation of instabilities; linear stability theory for tokamaks]

Description: Research has been carried out in two broad areas, nonlinear saturation of instabilities in collisionless plasma and incorporation of important physical phenomena into linear stability theories appropriate to Tokamaks. The nonlinear work has established a general technique for dealing with the singular functions which arise and is now applied to the collisionless drift, the dissipative trapped electron in linear geometry and the drift cyclotron loss cone. Multimode problems are under study. The … more
Date: September 10, 1976
Creator: Simon, A.
Item Type: Refine your search to only Report
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Applicability of chemical getter beds to scavenge tritium from inert gases

Description: Chemical getters can be used to scavenge tritium from inert gases. Cerium, which forms a hydride with a low dissociation pressure, has high reactivity, and is relatively inexpensive, is a good candidate getter material for such a scavenger system. Mathematical models for using cerium in both fixed- and fluidized-bed reactors predict satisfactory performance. Moreover, the capital cost of a gettering system, estimated to be between $115,000 and $166,000 (m/sup 3//s) flow, is competitive with tha… more
Date: March 10, 1976
Creator: Maienschein, J. L.
Item Type: Refine your search to only Report
open access

Application of quality assurance guidelines to the high pressure gas system, building 331. [LLL facility for filling pressure vessels with tritium]

Description: Major improvements have been made to decrease the tritium release potential for LLL's tritium-handling facilities in Bldg. 331. Some of the major problems and solutions in designing and building the High Pressure Gas System, which was the first system to be rebuilt are described. To increase system safety, it was necessary to specify material and processes used in component manufacture, to inspect all materials and processes to ensure compliance with specifications, to use proper joint design, … more
Date: March 10, 1976
Creator: Hanel, S.
Item Type: Refine your search to only Report
open access

Assessment of Community Planning for Mass Transit, Volume 11: Technical Report

Description: One in a series of reports by the Office of Technology Assessment (OTA). This particular report is intended to "cast light on prospective changes in national transit policy programs and administration that might improve, in different ways and to different extents, the way communities plan mass transit systems" (p. iii).
Date: February 10, 1976
Creator: United States. Congress. Office of Technology Assessment.
Item Type: Refine your search to only Report
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Auger and Reaction Studies of Poisoning by Sulfur and Regeneration of Metal Synthesis Gas Catalysts. Progress Report, December 8, 1975--December 8, 1976

Description: CO methanantion rates have been measured in the all-glass internal recycle reactor developed for this work. The methanation rate over the cylinder Ni film catalyst at 400/sup 0/C is 3.9 sec/sup -1/ initially, and the catalyst undergoes deactivation to a value of 1.8 sec/sup -1/, comparable with a reported value of 2.5 sec/sup -1/. The activation energy for Ni film on alumina is 24 kcal/mole, that for Ni film on silica is 17.8 kcal/mole comparable to values for Ni on these supports. The kinetics… more
Date: December 10, 1976
Creator: Katzer, James R.
Item Type: Refine your search to only Report
open access

Borehole cement and rock properties studies. Progress report for the period up to 1 August 1976

Description: Research on the use of cements in radioactive waste isolation is reported. Other research is reported on the effects of thermal treatments of clays and shales on their cation exchange capacities and relative sorptive properties for cations. Development of instrumentation for measuring thermal properties of cements at atmospheric pressure was completed. A method was developed for measuring heat flow in shales and cement. Data on thermodynamic properties of cements and shales are included. Studie… more
Date: August 10, 1976
Creator: Roy, D. M.; Brindley, G. W.; McKinstry, H. A.; Voight, B.; Grutzeck, M.; Komarneni, S. et al.
Item Type: Refine your search to only Report
open access

Brayton Isotope Power System, Design Integrity Checklist (BIPS-DIC)

Description: A preliminary Failure Modes, Effects and Criticality Analysis (FMECA) for the BIPS Flight System (FS) was published as AiResearch Report 76-311709 dated January 12, 1976. The FMECA presented a thorough review of the conceptual BIPS FS to identify areas of concern and activities necessary to avoid premature failures. In order to assure that the actions recommended by the FMECA are effected in both the FS and the Ground Demonstration System (GDS), a checklist (the BIPS-DIC) was prepared for the p… more
Date: June 10, 1976
Creator: Miller, L. G.
Item Type: Refine your search to only Report
open access

Critical evaluation of the nonradiological environmental technical specifications. Program description, summary, and recommendations. Vol. 1

Description: A comprehensive study of the data collected as part of the environmental Technical Specifications program for eight nuclear power plants was conducted for the Office of Nuclear Regulatory Research of the U.S. Nuclear Regulatory commission. This report includes a summary of the screening phase in which the adequacy of the hydrothermal and ecological monitoring data for each plant were evaluated, and the summary and recommendations resulting from a detailed examination of the three nuclear power … more
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D.; Kumar, K. D. & Witten, A. J.
Item Type: Refine your search to only Report
open access

Critical evaluation of the nonradiological environmental technical specifications. Volume 2. Surry Power Plants, Units 1 and 2

Description: A comprehensive study of the data collected as part of the environmental Technical Specifications program for Units 1 and 2 of the Surry Nuclear Power Plant was carried out for the Office of Regulatory Research of the U.S. Nuclear Regulatory Commission. The program included an analysis of the hydrothermal and ecological monitoring data collected from 1973 through 1975. The hydrothermal analysis includes a discussion of models used in plume predictions prior to plant operation and an evaluation … more
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D. & Kumar, K. D.
Item Type: Refine your search to only Report
open access

Critical evaluation of the nonradiological environmental technical specifications. Volume 3. Peach Bottom Atomic Power Station Units 2 and 3

Description: A comprehensive study of the data collected as part of the environmental Technical Specifications program for Units 2 and 3 of the Peach Bottom Nuclear Power Plant was conducted for the Office of Regulatory Research of the U.S. Nuclear Regulatory Commission. The program included an analysis of both the hydrothermal and ecological monitoring data collected from 1967 through 1976. Specific recommendations are made for improving both the present hydrothermal and ecological monitoring programs. Hyd… more
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D.; Kumar, K. D. & Witten, A. J.
Item Type: Refine your search to only Report
open access

Critical evaluation of the nonradiological environmental technical specifications. Volume 4. San Onofre Nuclear Generating Station, Unit 1

Description: A comprehensive study of the data collected as part of the environmental Technical Specifications program for Unit 1 of the San Onofre Nuclear Generating Station (SONGS 1) was conducted for the Office of Nuclear Regulatory Research of the U.S. Nuclear Regulatory Commission. The program included an analysis of the hydrothermal and ecological monitoring data collected during 1975. The hydrothermal analysis includes a discussion of models used in plume predictions prior to plant operation and an e… more
Date: August 10, 1976
Creator: Adams, S. M.; Cunningham, P. A.; Gray, D. D. & Kumar, K. D.
Item Type: Refine your search to only Report
open access

Effects of shield impedance, connector resistance, and coaxial inductors on ground noise interference in nuclear reactor instrumentation systems

Description: Electrical noise interference in low-level (approximately 50 ..mu..V), wide band (approximately 15 MHz) flux monitoring systems applied to nuclear reactor control causes safety and reliability problems. Others have shown that one predominant source of noise interference is conduction of currents in instrument cable shields and building conduits. Since these currents produce noise that is similar to signals produced by nuclear detectors, such noise interference reduces the ability of a reactor i… more
Date: February 10, 1976
Creator: Burns, R. S.
Item Type: Refine your search to only Article
open access

Effects of the trip phenomenon on the toughness of heat treatable alloy steels. [AISI 4330]

Description: It is shown that substantial amounts of untransformed austenite may be obtained in low alloy steels by a combination of alloy modification (addition of silicon) and heat treatment. In silicon modified AISI 4330 steel, the amount of untransformed austenite is varied by utilizing isothermal treatments both above and below the M/sub s/. The stability of the untransformed austenite is found to be dependent on the amount of silicon and also on the tempering temperature. A magnetic saturation techniq… more
Date: November 10, 1976
Creator: Kohn, G.
Item Type: Refine your search to only Report
open access

Environmental tests of the Meteorological Data Acquisition system's remote station

Description: We subjected the Meteorological Data Acquisition (MEDA) remote station hardware to temperature, vibration, and road tests. The MEDA equipment was designed at the Lawrence Livermore Laboratory (LLL) for the Air Resources Laboratory (ARL). ARL supplied all MEDA sensors. The prototype system passed these tests.
Date: May 10, 1976
Creator: Aaron, Jr., C. C.
Item Type: Refine your search to only Report
open access

Estimation of aerosol plutonium transport by the dust-flux method: a perspective on application of detailed data

Description: Two methods of dust-flux measurements are discussed which have been utilized to estimate aerosol plutonium deposition and resuspension. In previous studies the methods were found to be sufficiently detailed to permit parameterization of dust-flux to the erodibility of the soil, and a seventh-power dependency of dust-flux (or plutonium flux) to wind speed was observed in worst case conditions. The eddy-correlation method is technically more difficult, requires high-speed data acquisition, and re… more
Date: December 10, 1976
Creator: Shinn, Joseph H.
Item Type: Refine your search to only Article
open access

Feasibility of a MHD generator as a transmitter for electromagnetic sounding of the earth. [Mathematical models]

Description: Development of a high-intensity source for use in time-domain electromagnetic (TDEM) soundings would permit investigation of geothermal systems to much greater depth than is now possible with controlled-source methods. The development of such a source is critically dependent upon a powerful, mobile generator. Magnetohydrodynamic pulse generators satisfy the weight and power requirements for such a generator. However, existing MHD generators which are used in geophysical applications are solid f… more
Date: August 10, 1976
Creator: Fleming, D. B.
Item Type: Refine your search to only Report
open access

Geothermal direct-contact heat exchange. Final report

Description: A glass direct contact heat exchange column was operated in the laboratory at atmospheric pressure using hot water and normal hexane. Column internals tested included an empty column, sieve trays, disk-and-doughnut trays, and two types of packing. Operation was very smooth in all cases and the minimum temperature approaches varied from less than 1{sup 0}C for packing to 13{sup 0}C for the empty column. High heat transfer rates were obtained in all cases, however, columns should be sized on the … more
Date: June 10, 1976
Creator: Sims, A.V.
Item Type: Refine your search to only Report
open access

Investigation into the dissolution and direct assay of high-fired plutonium dioxide. [Fusion-melt with potassium pyrosulfate and sodium peroxide]

Description: A fusion-melt and dissolution assay method has been developed and tested for the quantitative analysis of high-fired plutonium dioxide. The method employs fusion of the plutonium dioxide at temperatures greater than the melting point of an eutectic mixture of potassium pyrosulfate plus sodium peroxide. The resultant melt is then titrated directly by either controlled potential coulometry or a gravimetric titration, using standardized ceric sulfate as the titrant. It has been concluded from thes… more
Date: April 10, 1976
Creator: Patterson, J. K.
Item Type: Refine your search to only Report
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